:root { color-scheme: light; font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif; color: #20382d; background: #f4f7f3; }
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { min-height: 100vh; min-height: 100svh; margin: 0; display: flex; flex-direction: column; background: radial-gradient(ellipse at 18% 30%, #dfecd7 0, transparent 48%), radial-gradient(ellipse at 90% 70%, #e4eee5 0, transparent 45%), #f4f7f3; }
a { color: inherit; }
.header, footer { width: min(1120px, calc(100% - 80px)); margin: 0 auto; display: flex; justify-content: space-between; align-items: center; }
.header { padding: 34px 0; }
.brand { display: flex; align-items: center; gap: 10px; font-size: 23px; font-weight: 720; letter-spacing: -.7px; text-decoration: none; }
.brand-dot { color: #689663; }
.header-note { font-size: 12px; color: #52684c; letter-spacing: 2px; }
main { position: relative; flex: 1; display: grid; place-items: center; padding: 35px 24px 55px; isolation: isolate; }
.welcome { width: min(100%, 610px); padding: 48px 60px 40px; background: #ffffffb8; border: 1px solid #ffffff; border-radius: 30px; box-shadow: 0 24px 80px #2e523a09; }
.eyebrow { margin: 0 0 27px; display: flex; align-items: center; gap: 9px; color: #506952; font-size: 10px; font-weight: 600; letter-spacing: 2.2px; }
.eyebrow span { width: 7px; height: 7px; border-radius: 50%; background: #6c965e; }
h1 { margin: 0; font-size: clamp(64px, 9vw, 104px); font-weight: 650; letter-spacing: -6px; line-height: .98; }
h1 span { color: #638a59; }
.intro { color: #536852; font-size: 15px; line-height: 1.9; margin: 28px 0 25px; }
.hello-button { display: inline-flex; align-items: center; gap: 38px; border-radius: 99px; padding: 14px 23px; background: #243e2d; color: #fff; text-decoration: none; font-size: 13px; transition: background .18s, transform .18s; }
.hello-button:hover { background: #365740; transform: translateY(-2px); }
.hello-button span { font-size: 18px; }
a:focus-visible { outline: 3px solid #719460; outline-offset: 5px; }
.divider { margin: 34px 0 22px; height: 1px; background: #dfe7db; }
.note { display: flex; align-items: flex-start; gap: 23px; scroll-margin-top: 30px; }
.note-number { color: #70806c; font-size: 11px; padding-top: 4px; }
h2 { margin: 0 0 8px; font-size: 13px; font-weight: 550; }
.note p { margin: 0; font-size: 11px; line-height: 1.7; color: #62705e; }
.orbit { position: absolute; z-index: -1; border: 1px solid #b2c7a552; border-radius: 50%; pointer-events: none; }
.orbit-one { width: 150px; height: 150px; top: 13%; left: max(3%, calc(50% - 465px)); }
.orbit-two { width: 90px; height: 90px; bottom: 13%; right: max(3%, calc(50% - 445px)); }
footer { padding: 0 0 26px; color: #52684c; font-size: 11px; }
footer > span:last-child { display: flex; align-items: center; gap: 15px; }
.footer-star { font-size: 25px; color: #6e9162; }
@media (max-width: 600px) {
  .header, footer { width: calc(100% - 40px); }
  .header { padding: 25px 0; }
  .brand { font-size: 21px; }
  .header-note { font-size: 10px; letter-spacing: 1px; }
  main { padding: 24px 20px 40px; }
  .welcome { padding: 36px 30px 30px; border-radius: 24px; }
  h1 { letter-spacing: -4px; }
  .eyebrow { font-size: 9px; letter-spacing: 1.6px; }
  .intro { font-size: 13px; }
  .orbit { display: none; }
  footer { font-size: 10px; padding-bottom: 20px; gap: 15px; }
  footer > span:last-child { gap: 7px; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } .hello-button { transition: none; } }